Floor rack for refrigerator cars



Filed June 17, 1915'? 0000c a a a 0 0000 00000 a 0 o 0 0 0M0"; 00000 0 o o o a 00000 00000 a o a o c 00000 00000 c o o 0 o 00:00 00 00 a o o c a 00000 60 00 0 0 0 o c 00000 5 Q wuflmuo o o o o o ooooow csouuo o a o a 0 000000 0 O o oauo o a o o 0 000000 0 0 000000 0 o n o 0 000000 0 0 000000 0 0 o o o aacooo U Q 00000 0 o o 0 0 0000 60 0 Q 900000 a a o o 0 000000 0 0 000000 a o o o 0 000000 0 o 0000 0 0 u o o o o o 0 0000 o 0 00000 a o o o 0 Banana 0 0 000000 0 o o o 0 00000 0 Q 000000 a a o o 0 000000 0 0 000000 c e a o 0 0 000 0 0 000000 e 0 o o 0000 o 0 000000 c a o 0 0 000000 0 c oooooo o o o o a oeoeoo 0 Q onoooo a 0 c o 0 000000 0 0 000000 a e o 0 0 000000 0 0 00000 a a o o 0 000000 0 u 00 o o 0 0 0 000000 3 0 00 0 0 0 0&0 0 0 0 0 0000 .U Q 23003 0 o 0 0000000 Q I c Patented (Jet. 18, 1938 R 2,133,723"

UNITED STATES PATENT OFFICE FLOOR RACK FOR REFRIGERATOR CARS Vinton E. Sisson, Winnetka, Ill., assignor, by mesne assignments, to Standard Railway Equipment Manufacturing Company, a corporation of Delaware Application June 17, 1937, Serial No. 148,689 7 Claims. (Cl. 105-375) This invention relates to insulated refrigerator in the floor rack and through or between the cars used to transport perishable commodities, lading l2, and being warmed thereby, returns such as vegetables, fruits, berries, meats, eggs, through the opening l3 above the bulkhead to frozen fish, etc., and to maintain such comthe refrigerant chamber. This air movement 5 modities while in transit within a predetermined is indicated by arrows. When a stove is used 5 range of temperature, thus necessitating the use for heating the air, of course, the direction of of a cooling means in the summer and a heatthe circulation is reversed. This convection ciring means in the winter. It has been found culation of air is repeated. that perishable commodities which have not been In the form of the invention shown the floor allowed to get too cold (freeze) or too hot (bake) rack comprises a metallic plate 20 supported by 10 have a high market value because they have a a plurality of parallel stringers 2| to form a longer storage life. series of air channels 22-22 communicating The invention rel-ates specifically to floor with the refrigerant chamber 1. The plate may racks for such refrigerator cars which comprise be reinforced in any desired manner to give it a foraminous or perforated floor, arranged to the required strength. 15 support the lading in the car in spaced relation The plate is provided with a plurality of aperto the insulated floor of the car so that air, tures 25 over each air channel 22 and the disafter it has been c o ed y a refrigerant, or tance between the apertures progressively deheated y a heater, ay p under t lading creases from the bulkhead 6 toward the middle and h o h the f in u or n up throu h of the car; likewise, I also preferably progres- 20 or between the lading. v sively decrease the distance between the aper- The O ject of t invention is t r e and tures from the longitudinal center of the car tospace the apertures relative to the car structure, Ward t side Walls ti l and to each ot e to p o e the greatest The accompanying drawing illustrates the pre- 25 ency f h o n r heating medium- It is ferred form of the invention, though it is to be 25 We nown t at in Summer the hottest p Of understood that the invention is not limited to a re e ator Ca t loading therein) is the exact details of construction shown and deadjacent the side doors which is caused by heat scribed, as it is Obvious t various modiiiealeaking through the car around the edges of tions thereof, within the scope of the claims,

the doors, therefore, I provide a large number will occur to persons Skilled in the art 30 of apertures in the floor rack adjacent the doors. I claim: It is also known that side walls leak heat, there- In a refrigerator ear having spaced apart fore, I provide a large number apertures adja' side walls and a bunker extending between said cent the side walls of the car. The coolest part walls; a floor e comprising a sheet member f 15 adlacent the bfllkhead e supported in spaced relation to the floor of the 35 I pljolvlde FY f w aperture? 111 the floor this car by a plurality of stringers substantially parregion. By JudlClOllSlY spacing the apertures the allel to said Walls to provide a plurality of air cold air is allowed to rise through the floor rack channels which Communicate with the bunker,

in proportion F requlrementssaid sheet member being provided with aper- 40 the drawmg: tures over each of said air channels for air move- 40 Fig. 1 shows the application of my devic to ment therethrough, the distances between said f refngerator F apertures progressively decreasing from the bulk- 2 Shows plan Vlew of my floor rack' head toward the middle of the car.

Fig. 3 is a section of my floor rack and adjacent car parts.

Fig. 1 shows a typical railway refrigerator car having roof 2, floor 3, end wall 4 and doorway 5. The bunker 6 separates the refrigerant chamber 1 from the lading compartment and is pro- Vided with a rate 9 for Supporting ice (for allel to said walls to provide aplurality of air 0 cooling the air or a stove (for warming th channels which communlcate with the bunker, 5

air). The floor rack It provides a space H be- Said Sheet P being provided t apertures tween th lading l2 d th floor 3 Air being over each of said air channels for air movement cooled by the refrigerant descends into the therethrough, the distances b n 8 1 space H and rising upwardly through apertures tures progressively decreasing from the longl- 55 2. In a refrigerator car having spaced apart side walls and a bunker extending between said 45 walls; a floor rack comprising a sheet member supported in spaced relation to the floor of the car by a plurality of stringers substantially partudinal center of the car toward the side walls respectively.

3. In a refrigerator car having spaced apart side walls and a bunker extending between said walls; a floor rack comprising a sheet member supported in spaced relation to the floor of the car by a plurality of stringers substantially parallel to said walls to provide a plurality of air channels which communicate with the bunker, said sheet member being provided with apertures over each of said air channels for air movement therethrough, the distances between said apertures progressively decreasing from the bulkhead toward the middle of the car and also progressively decreasing from the longitudinal center of the car toward the side walls respectively.

4. In a refrigerator car having spaced apart side walls and a bunker extending between said walls; a floor rack comprising a sheet member supported in spaced relation to the floor of the car by a plurality of stringers substantially parallel to said walls to provide a plurality of air channels which communicate with the bunker some of said channels being adjacent the side walls, said sheet member being provided with apertures over each'oi said air channels for air movement therethrough, the distances between said apertures progressively decreasing from the bulkhead toward the middle of the car, said sheet provided with additional apertures in the air channels adjacent the side walls.

5. In a refrigerator car having a floor, a rack comprising a member supported in spaced relation to the floor to provide a flue therebetween,

and means adjacent a wall of the car to induce an air current in said flue moving away from said means, said member having apertures therein for air movement therethrough, the distance between said apertures gradually decreasing away from said means.

6. In a refrigerator car having a floor, a rack comprising a member supported in spaced relation to the floor to provide a flue therebetween, and means adjacent a wall of the car to induce an air current in said flue moving away from said means, said member having apertures therein for air movement therethrough, the area of opening of said apertures in said member for a given area gradually increasing away from said means.

'7. In a refrigerator car having parallel walls, a connecting wall therebetween, a floor, a rack comprising a member supported in spaced relation to the floor to provide a flue therebetween, and means adjacent the connecting wall to induce an air current in said flue moving away from said means, said member having apertures therein for air movement therethrough, the area of opening of said apertures in said member for a given area gradually increasing away from said means and the area of opening of said apertures in said member for a given area gradually decreasing from each of said parallel walls toward a line midway therebetween.

VINTON E. SISSON. 

